Camera crane arm base



FIG. 1 is a left side elevation view showing my design, and the right side view thereof being the same as the left side view;

FIG. 2 is an end view thereof, the oppoiste end thereof being the same;

FIG. 3 is a bottom view thereof;

FIG. 4 is a top and left side view thereof; and,

FIG. 5 is a top view thereof. 

The ornamental design for a camera crane arm base, as shown and described. 